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Question

In an isobaric process where γ is the adiabatic exponent of the gas,

A
The heat given to the gas is 7γ1 times the work done by the gas.
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B
The work done by the gas is (γ1) times the change in intermal energy.
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C
The temperature of the gas is increased.
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D
The temperature of the gas is decreased.
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Solution

The correct options are
A The heat given to the gas is 7γ1 times the work done by the gas.
B The work done by the gas is (γ1) times the change in intermal energy.
C The temperature of the gas is increased.
At constant pressure, VT
If volume increases, temperature also increases.

In an isobaric process, ΔQ=γΔU
(CP=γCV)
ΔQ=ΔU+ΔW (1st Law)
ΔW=γΔUΔU=(γ1)ΔU
ΔU=(1γ1)ΔW
ΔQ=γ(γ1)ΔW

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